Waterproofing compound.



. tion satis PATENT oEEroE.

RICHARD FALTER, or NEW YORK, N. Y.

WATERPROOFING COMPOUND.

, York, in the county of New York and State of New York, have invented anew and useful Waterproofing Compound, of which the following is aspecification.

This invention relates generally to the art of rendering fabrics wateror moisture proof, and particu arly to an improved composition of matteradapted to be suitably applied to one or both sides of a fabric for thepurpose specified.

In waterproofing fabrics, it is essential'that the ingredients usedshall have no injurious effect upon the quality, or color of the fabric;that is to say, it is essential that the ingredients shall notinjuriously affect the tensile strength or cause the fabric to fade.Furthermore, itis essential that the waterproofing composition shall beinexpensive to produce as wellas practically permanent during thelife'of the fabric, andnot subject to deterioration or chemical changesuch as will cause it to become sticky or otherwise undesirable in itsnature.

The im roved composition of this invenfies all the above mentionedreuirements. It does not injuriously affect -t e quality, size or colorof; the fabric, nor is it unduly expensive, difficult to produce, im-

. rubbed on the fabric, or where machines are used, they are suitablyheld in place and the fabric is drawn thereover, after which the fabricis assed between suitable heated calender rol s to melt and drive thecomposition into the fabric.

ferred to mix t em in the'proportion of seven Specification of LettersPatent.

Application filed February 1,1906. Serial No. 298,954.

1proportions, it is usually pre- Patented June 11, 1907.

parts of white ozokerite to one part of yellow ozokerite, one part ofmutton tallow and one part of cereate.

The white ozokerite is used principally for its waterproofing qualitiesand for the reason that it is permanent in its eil'ect as well asnon-injurious to the color and. quality of fabrics. The'yellow ozokeriteis used for the same reasons as the white ozokerite and for the furtherreasons that it is comparatively inexpensive and serves to impart to thecomposition a light tan color which is desirable in the treatment offabrics. The mutton tallow is used principally to soften the compositionso as to ermit it to be easily applied to fabrics, t e ozokerite beingtoo hard in its natural state to be properly a plied. Furthermore, it isinex ensive and s lightly effective in increasing t e waterproofingqualities of the composition. The cereate 1S used for practically thesame reasons as the mutton tallowa The improved com osition ofmatterserves not only to render fa ric water and moisture proof but alsoto size or weight the same, that is, to impart to it a ood surface orfinish, and to ive itwei ht or ody.

Havin thus escribed the invention what is claimed as new is:

1. A composition of matter consisting 'of ozokerite, mutton tallow andcereate.

2 A composition of matter consisting of- White ozokerite, muttontallowand cereate.

3. A composition of matter consisting of White ozokerite, yellowozokerite, mutton tallow and cereate.

4. A composition of matter. oonsi sting of seven parts of whiteozokerite, one part of yellow ozokerite, one part of mutton tallow andone part of cereate.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses, this 29th day of HERBERT B.SMITH, 0. GRANT ESTERBROOK.

